By the way:After searching for this post I realized that you don't get the Date of the Post if you are logged in - if you are logged out the Forums software displays the date of the post.Why is that so?

If I think long enough about this it brings me to the conclusion that it could also be the solution for the "Polygon, Center Point, PG1 upgrading.

If we have the possibility to choose a Reference Points (just two: middle and end) we could handle all variations on that polygon inclusive a radius determination with the Coordinate (R) function.Designing A/F (across flats) at Hex Machine bolts etc. etc. etc. would then just be a piece of a cake ...